cnn was there when president obama called tuff. right there in the makeup room before an interview with cnn. the president tells chris cuomo tuff is a hero. >> when i heard the 911 call and you know, read the sequence of events, i thought here's somebody who's not just courage and not just cool under pressure, but also had enough heart that somehow, she could convince somebody who was in trouble that she really cared about. i told her, i said that not only did she make michelle and me proud, but she probably saved a lot of lives. >> wow, at the end of antoinette's call to police was a 911 dispatcher who also played a key role in keeping the students safe. martin savidge takes a look at the incident and shows us the moment the two women met face to face. >> antoinette tuff has become an inspiration for so many people, but she wil tell you she didn't act alone. there were other people involved and one of those was another voice of another woman, the 911 operator, and for the first time, those two got to meet. it was an amazing moment